The laminar organization of the motor cortex in monodactylous mammals: a comparative assessment based on horse, chimpanzee, and macaque.

The architecture of the neocortex classically consists of six layers, based on cytological criteria and on the layout of intra/interlaminar connections. Yet, the comparison of cortical cytoarchitectonic features across different species proves overwhelmingly difficult, due to the lack of a reliable model to analyze the connection patterns of neuronal ensembles forming the different layers. We first defined a set of suitable morphometric cell features, obtained in digitized Nissl-stained sections of the motor cortex of the horse, chimpanzee, and crab-eating macaque.

Early diagnosis of Wegener's granulomatosis presenting with bilateral facial paralysis and bilateral serous otitis media.

Wegener's granulomatosis (WG) is a multi-system disease characterized by granuloma formation and widespread necrotizing vasculitis. It classically presents with involvement of the upper and lower respiratory tracts and renal system. Facial nerve palsy and otologic manifestations have been reported during the course of the disease but it is extremely rare as the presenting features.